package yunwo.cn.yzstation.utils;
import android.content.Context;
import android.location.LocationManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;import android.telephony.TelephonyManager;
/**
 * 网络工具类
 * Created by alic on 16-4-8. 
*/
public class NetWorkUtils {   
/**     
* 判断是否有网络连接     
*    
* @param context  
* @return   
*/
    public static boolean isNetworkConnected(Context context) {
        if (context != null) {
            // 获取手机所有连接管理对象(包括对wi-fi,net等连接的管理) 
           ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
           // 获取NetworkInfo对象
            NetworkInfo networkInfo = manager.getActiveNetworkInfo();
           //判断NetworkInfo对象是否为空
            if (networkInfo != null)
                return networkInfo.isAvailable(); 
       }
        return false; 
   }    
/**
* 判断WIFI网络是否可用
* 
* @param context 
* @return
/
    public static boolean isWifiConnected(Context context) {
        if (context != null) { 
          // 获取手机所有连接管理对象(包括对wi-fi,net等连接的管理)
           ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
            // 获取NetworkInfo对象
            NetworkInfo networkInfo = manager.getActiveNetworkInfo(); 
         //判断NetworkInfo对象是否为空 并且类型是否为WIFI
            if (networkInfo != null && networkInfo.getType() == ConnectivityManager.TYPE_WIFI) 
               return networkInfo.isAvailable();
        }        return false;
    }   
 /**
* 判断MOBILE网络是否可用
*
* @param context
* @return
*/
    public static boolean isMobileConnected(Context context) {
        if (context != null) {
            //获取手机所有连接管理对象(包括对wi-fi,net等连接的管理)
            ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
           //获取NetworkInfo对象
            NetworkInfo networkInfo = manager.getActiveNetworkInfo();
            //判断NetworkInfo对象是否为空 并且类型是否为MOBILE 
           if (networkInfo != null && networkInfo.getType() == ConnectivityManager.TYPE_MOBILE)
                return networkInfo.isAvailable();
        } 
      return false; 
   }    
/**
* 获取当前网络连接的类型信息
* 原生
*
* @param context
* @return
*/    public static int getConnectedType(Context context) {
        if (context != null) {
            //获取手机所有连接管理对象
            ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
            //获取NetworkInfo对象
            NetworkInfo networkInfo = manager.getActiveNetworkInfo();
            if (networkInfo != null && networkInfo.isAvailable()) {
                //返回NetworkInfo的类型
                return networkInfo.getType();
            }
        }
        return -1; 
   }
/**
* 获取当前的网络状态 ：没有网络-0：WIFI网络1：4G网络-4：3G网络-3：2G网络-2
* 自定义
*
* @param context
* @return
*/
    public static int getAPNType(Context context) {
        //结果返回值
        int netType = 0;
        //获取手机所有连接管理对象
        ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        //获取NetworkInfo对象
       NetworkInfo networkInfo = manager.getActiveNetworkInfo();
        //NetworkInfo对象为空 则代表没有网络
        if (networkInfo == null) { 
           return netType;
        }
        //否则 NetworkInfo对象不为空 则获取该networkInfo的类型
        int nType = networkInfo.getType();
        if (nType == ConnectivityManager.TYPE_WIFI) {
            //WIFI
            netType = 1;
        } else if (nType == ConnectivityManager.TYPE_MOBILE) {
            int nSubType = networkInfo.getSubtype();
           TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
            //3G   联通的3G为UMTS或HSDPA 电信的3G为EVDO
            if (nSubType == TelephonyManager.NETWORK_TYPE_LTE 
                   && !telephonyManager.isNetworkRoaming()) {
                netType = 4;
            } else if (nSubType == TelephonyManager.NETWORK_TYPE_UMTS
                    || nSubType == TelephonyManager.NETWORK_TYPE_HSDPA
                    || nSubType == TelephonyManager.NETWORK_TYPE_EVDO_0
                    && !telephonyManager.isNetworkRoaming()) {
                netType = 3;
                //2G 移动和联通的2G为GPRS或EGDE，电信的2G为CDMA
            } else if (nSubType == TelephonyManager.NETWORK_TYPE_GPRS
                    || nSubType == TelephonyManager.NETWORK_TYPE_EDGE
                    || nSubType == TelephonyManager.NETWORK_TYPE_CDMA
                    && !telephonyManager.isNetworkRoaming()) {
                netType = 2;
           } else {
                netType = 2; 
           }
        }
        return netType;
    }
/**     
* 判断GPS是否打开     
*ACCESS_FINE_LOCATION权限     
* @param context     
* @return     
*/    
public static boolean isGPSEnabled(Context context) {       
 //获取手机所有连接LOCATION_SERVICE对象        
LocationManager locationManager = ((LocationManager) context.getSystemService(Context.LOCATION_SERVICE));
        return locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
    }
}

